1AZ0

ECORV ENDONUCLEASE/DNA COMPLEX

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (C, D)	DNA (5'-D(*AP*AP*AP*GP*AP*TP*AP*TP*CP*TP*T)-3')	polymer	11	3356.2	2
2	C, D (A, B)	PROTEIN (TYPE II RESTRICTION ENZYME ECORV)	polymer	244	28559.2	2	UniProt (P04390) Pfam (PF09233)	Escherichia coli	ENDONUCLEASE ECORV, R.ECORV
3	E, F (A, B)	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)		CALCIUM
4	G, H, I, J (C, D, A, B)	water	water		18.0	229	Chemie (HOH)		WATER

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	63830.8
Non-Polymers*	Number of molecules	2
	Total formula weight	80.2
All*	Total formula weight	63910.9

*Water molecules are not included.